We are in testing and I have Spark 2.6.3 installed on 5 machines. After about a week, a few will become unresponsive. Everything on the machine will run fine but if I try to look at Spark, it becomes unresponsive and I the GUI won't even display. Looking at Task Manager either Spark or Javaw, CPU is some times around 50 and Mem Usage is around 300,000k. To the other users, the user looks fine and online. If you send a message to it, it looks like it goes through but it does not.
I tried creating a Spark.vmoptions but it doesn't seem to work cause no file is being created. The only way to fix it is to kill the process and open it then everything works fine again. Seems to be a memory leak but it doesn't seem to happen to every machine. Is this a known problem? Any suggestions on how to fix the problem? Thanks!